, 04.07.2019 08:00 Jasten

# Little timmy wants to measure how tall his house is. he doesn’t have a tape measure but does have a stopwatch. he recruits big bob to climb on his roof and drop a rock. he times the rocks fall and finds it to be 1.67 s. how tall is his house?

### Another question on Physics

Physics, 22.06.2019 06:00
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
Physics, 22.06.2019 11:30
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?